Craniosynostosis surgery is offered when a seam between the bones of the skull has fused early, and it is done to make room for the growing brain and to correct the shape that fusion has forced. It is not cosmetic surgery. Which operation your baby is offered depends mostly on age, because the smaller endoscopic route is for younger patients.
Does My Baby Really Need Surgery for Craniosynostosis?
Surgery is the usual treatment once craniosynostosis is confirmed, and the reason is the risk of leaving it alone rather than the look of the head. Because of the risks associated with untreated craniosynostosis, surgical treatment is usually undertaken soon after diagnosis.
Alam po namin na nakakatakot ang salitang opera para sa isang sanggol. That fear is reasonable, and what follows is what the operation is for, so it has something solid to sit against.
What the Operation Is For, and What It Is Not For
The operation exists to unlock the skull and let it grow again. The two things surgeons are trying to prevent are pressure inside the head and a shape that will not correct itself.
Pressure is the part parents are rarely told about, because it usually cannot be seen. About 15 to 20 percent of children with a single fused seam have a documented rise in pressure inside the head, and about one third of children with a craniofacial syndrome do. The difficulty is that the majority of patients may have neither warning signs nor symptoms for a long period of time, and among children without a syndrome the risk climbs with the number of seams involved.
So this is not an operation for appearance alone. The shape matters and correcting it is part of the plan, but it is not why the operation is offered soon after diagnosis. If you would like the condition itself explained first, we cover what craniosynostosis is and why a baby’s skull fuses early separately.
When a Team Watches Instead of Operating
Not every unusual head shape leads to an operation, and not every ridge on a seam is the severe end of the condition. Severity runs along a range, and the milder end of that range is watched.
The clearest published example is the seam down the middle of the forehead. In a series of 231 children operated on for that shape at one British unit over 20 years, surgery was offered at the moderate to severe end of the range, with a ridge that can be felt as the only feature sitting at the mild end. Kaya po may mga batang binabantayan lang muna, at hindi ibig sabihin nito na binabalewala sila.
If a team proposes watching, ask directly what they are watching for and when they will decide.
What Does Craniosynostosis Surgery Actually Do?
The operation removes or opens the fused seam, and then either lets the skull re-grow into shape or re-shapes it during the same operation. Those two halves are what separate the different techniques from each other.
Taking Out the Fused Seam
A closed seam cannot grow, so it comes out. The narrow strip of bone along the fused seam is removed, which releases the restriction and gives the brain room to push the skull outward again as it grows. On its own, that release is enough only while a baby’s brain is growing fast, which is why the release on its own does less the later it is done.
Reshaping the Skull
Reshaping means the bones of the vault are cut, moved and fixed in a better position during the operation itself. There are four approaches in current use: open reconstruction of the vault, removal of the seam with a moulding helmet worn afterwards, removal of the seam with springs implanted, and gradual distraction of the skull bones.
Which a centre uses depends on the seam involved, the child’s age and the team’s own experience. Ito po ang karaniwang pinag-uusapan sa unang konsulta. It is a conversation, not a menu.
Seek care now
Which Signs Mean Your Baby Should Be Seen Now, Not at the Next Visit?
The two lists below are our own standing advice to families in this clinic rather than a published checklist. They are the signs that change what happens next at a consult.
Go to the nearest hospital emergency room, or be seen the same day, for any of these:
- Repeated vomiting with unusual sleepiness, or a baby who is difficult to wake
- Bumbunan, the soft spot, tense or bulging while your baby is calm and held upright
- Eyes that will not follow a face, that drift, or that suddenly turn
- A seizure
- A baby who stops doing things they were already able to do
- After an operation: fever with a red, swollen or leaking wound, or fluid collecting under the scalp
Ask for an earlier appointment, rather than waiting for the next well-baby visit, for any of these:
- A firm ridge you can feel along a seam of the skull
- A head shape that was already unusual immediately after birth
- A head shape that is more obvious at four months than it was at one month
- A head shape that has not improved at all despite changing your baby’s position
- Head circumference crossing lines on the growth chart across visits, in either direction
Three of those are not only ours. Whether the shape was abnormal immediately after birth, whether your baby has a preferred posture, and whether the shape has improved are the points a published primary care flowchart is built around, and bringing that flowchart into everyday practice has improved diagnosis and referral considerably. Abnormal head circumference growth is one of the tools studied for picking up raised pressure inside the head.
Two things make the timing matter. A normal eye examination does not rule out raised pressure inside the head, because fundoscopy and imaging are not necessarily related to what pressure recordings show. And raised pressure can cost a child their sight permanently, while the risk of it keeps rising for as long as a fused skull is left unoperated.
Endoscopic or Open Surgery: What Is the Difference?
The endoscopic operation removes the fused seam through two small incisions and lets the skull re-grow into shape with the help of a helmet. The open operation uses one long incision across the top of the head and re-shapes the vault in theatre during the same sitting.
The Endoscopic Operation
It is the smaller of the two, and the published figures show that plainly. In one single-centre series of 235 consecutive babies, the median operating time was 55 minutes and the median blood loss 25 millilitres, 96 percent went to an ordinary surgical ward rather than intensive care, and the median stay was one day.
A helmet is then worn for some months afterwards, and that helmet is part of the operation rather than an optional extra.
The Open Operation
Open surgery does the reshaping itself, which is why it takes longer and costs more blood. Pooling 34 studies and 11,554 patients, endoscopic surgery used about 153 millilitres less transfused blood, ran about 129 minutes shorter, and was followed by hospital stays about 2.8 days shorter.
What those same studies did not find was a difference in the shape achieved. The cephalic index, the measurement used to judge the corrected shape, came out no different between the two. They are different operations for different ages, not a better one and a worse one.
Which One a Surgeon Offers, and Why
Age is the main determinant, and after that the seam involved and what the centre can do. Open surgery is a reasonable choice in older children, and it is also the answer where an endoscope or a surgeon experienced in the technique is not available, so it is worth asking whether your centre offers both. There is more on why timing decides whether the endoscopic route stays open.
Is There an Age Window for Craniosynostosis Surgery?
There is, and it applies to the endoscopic route rather than to surgery in general. The endoscopic operation depends on rapid brain growth to do the reshaping afterwards, so it is done in the early months.
Why the Endoscopic Window Closes
The published series operate early: across 25 studies of endoscopic repair of the seam along the top of the head, the mean age at surgery was 3.3 months.
Where the edge sits is still argued. In a review of 107 endoscopic operations on the midline seam, a quarter of babies operated after three months reached the target shape measurement, against 49 percent of those operated before two months and 62 percent of those operated between two and three months, and the authors still concluded that older babies may benefit. The window is a slope rather than a door.
What Is Offered After the Window
Open reconstruction is what remains, and it works at ages the endoscopic route cannot reach. Ang mahalaga po ay hindi mawala ang pagkakataon. A worrying shape is worth showing to someone early rather than watching for another three months.
One finding argues against drifting into the middle. In a national analysis of 6,010 operations, babies operated between seven and 12 months had higher odds of an in-hospital complication than those operated at zero to six months.
The Child or Adult Who Was Never Operated
A fusion that was never operated does not undo itself. The shape a fused coronal seam produces persists into adulthood if it is left untreated, and the risk of raised pressure inside the head keeps increasing for as long as there is no operation. In a morphometric study of 42 adult skulls with untreated craniosynostosis, bony signs of long-standing raised pressure were present in 82 percent of the oxycephalic and brachycephalic ones, the tower-shaped and the broad, short types.
What is offered in adulthood is a different operation, and it is decided with the patient rather than for them. A Paris unit reported 13 unoperated adults, mean age 24 years, whose deformity was corrected: 11 needed the forehead and vault reshaped from inside the skull and two were managed with an implant, with the projected correction discussed with each patient beforehand. Operating in infancy is preferable, but where that did not happen the deformity can still be corrected, as a much more complicated operation.
What Are the Risks, and Will My Baby Need a Blood Transfusion?
A transfusion is likely with open surgery and much less likely with the endoscopic route. In a national surgical quality database of 3,924 repairs, transfusion was the single commonest recorded outcome, at 66.5 percent of all patients.
Blood Loss and Transfusion
The two routes are far apart on this. Two large 2012 datasets of babies under a year, which counted open and endoscopic repairs together, recorded transfusion in 36 and 64 percent of them, while the pooled analyses show transfusion needed far less often after endoscopic surgery.
Teams also work at reducing it. Tranexamic acid, a drug that slows the breakdown of clots, reduces both blood loss and the amount of blood transfused in this surgery, with no drug-related adverse outcomes recorded in the 258 children who received it across the pooled trials. It is worth asking your team whether they use it.
The Other Complications
Serious complications are uncommon and death is rare. In a national study of 3,426 American repairs, about 10 percent of babies had an acute complication, most often bleeding or a breathing problem, and mortality was under one percent.
The complications also differ by route. In a national inpatient study of 1,099 patients, surgical complications occurred in 0.5 percent of endoscopic cases against 7.9 percent of open ones, with tears in the covering of the brain making up most of the difference, and no difference in deaths in hospital. We set out how often each of these complications actually happens in its own post.
How Long Will My Baby Be in the Hospital?
Expect roughly one to two days after endoscopic surgery and three to five days after open surgery. In the national inpatient comparison the mean stay was 1.6 days for endoscopic and 3.7 days for open repairs, and a separate study of 3,426 repairs found a mean of 4.2 days.
Your own centre’s answer may differ. Asking for it early helps you plan leave from work and someone to stay with your other children.
What Is Life After Craniosynostosis Surgery Like?
Most children go back to being ordinary children, with follow-up appointments and a helmet for some months if the endoscopic route was used. The long-term questions parents ask are about the shape, about school, and about whether a second operation is coming.
The Helmet, After Endoscopic Surgery
The helmet is not an add-on. Removal of the fused seam followed by a moulding helmet is one recognised operation in current use, and the helmet is what turns the release into a shape.
Development and School
The reassuring study here is a recent one. Among 81 school-age children operated on for a fused midline seam, general intellectual ability was no different between those repaired endoscopically and those repaired openly, with adjusted mean scores of 100 and 103, and the differences from unaffected children were within the normal range.
That is not the same as a promise. In a five-centre study of three-year-olds with a single fused seam, average scores ran three to six points below matched children, and the age at repair was not strongly related to how they scored. Kaya po nagpapa-check-up pa rin ang mga bata kahit maayos na ang hugis ng ulo. There is more in what the years after the operation actually bring.
Follow-Up, and the Chance of a Second Operation
A second operation is a real possibility rather than a likely one. In a national database of 3,924 repairs the reoperation rate was 2.4 percent and readmission 3.0 percent, and in the pooled comparison of the two routes reoperation was 62 percent lower after endoscopic surgery.
The figure rises in more complex situations. In the 20-year trigonocephaly series it was 6.5 percent overall, falling to 1.1 percent after the unit introduced infection-control measures, which says something useful about where some reoperations come from.
What to Send With a Craniosynostosis Referral
For colleagues in primary care, paediatrics, family medicine and emergency medicine: refer on the shape, not on the certainty, and refer early. Early referral to a paediatric craniofacial centre is what allows all treatment options to be explored, and the endoscopic option is time-limited in a way the open one is not.
What Makes the Referral Urgent
The thresholds below are this practice’s own, and they exist because late referral is the documented failure mode. Craniosynostosis patients often turn out not to be recognised, or to be referred at a late stage, and the usual reason is that an abnormal skull shape is attributed to the infant’s preferred posture, which is far more common than craniosynostosis. Refer, rather than review in three months, when any of these are present:
- A palpable ridge over a suture line
- An abnormal skull shape noted immediately after birth
- A head shape progressing rather than settling across visits
- A shape unresponsive to repositioning
- Orbital, ear or facial midline asymmetry alongside the skull shape
- Head circumference crossing centiles in either direction
- Any suspicion of a syndrome, including hand, foot, airway or midface features
- Any infant under four months in whom the shape raises the question at all, because the endoscopic window is measured in months
Three of those are the points the Dutch craniosynostosis guideline’s primary care flowchart turns on: whether the shape was abnormal immediately after birth, whether a preferred posture is present, and whether the shape has improved. Head circumference growth is assessed separately in the guideline, among the tools for detecting or excluding raised intracranial pressure. Introducing that flowchart into primary and secondary care improved diagnosis and referral considerably. The under-four-months trigger is ours rather than the guideline’s, and it follows from the endoscopic window.
What to Send, and What Not to Wait For
Send serial head circumferences with dates, photographs of the vertex, occiput and both profiles, the birth and pregnancy history, a family history of skull shape or craniofacial anomalies, and any imaging already done, on disc rather than as a report alone.
Do not wait on imaging to refer. A CT is often what the receiving team wants to order itself, and requesting one first can cost the weeks that decide which operations remain available.
What Comes Back
Expect a clinical examination that names the seam, a decision on imaging, and a discussion of both operative routes rather than one. A recent multicentre cognitive study made the same point as a recommendation: primary care clinicians should be educated about the surgical options precisely so that referral is early enough for all of them to remain viable.
Bring and ask
What to Bring and What to Ask at the Consult
Bring:
- The baby book, with every head circumference measurement in it
- Photographs of the head from directly above, from behind and from each side, taken a few weeks apart if you have them
- Any scan already done, on disc as well as on paper
- A note of anyone else in the family with an unusual head shape, or with hand, foot or hearing differences
- Your PhilHealth membership details and any HMO card
Ask:
- Which seam is involved, and is my baby still inside the endoscopic window
- Which operation are you offering, and what would change your mind
- Will a helmet be needed afterwards, and for how long
- How likely is a transfusion, and do you use tranexamic acid
- How many nights should we plan for
- What will this cost at this hospital, what does PhilHealth cover here, and who do I speak to about the balance
The cost question belongs to the hospital’s own social service or billing office, not to a website. We go through who pays for craniosynostosis surgery in the Philippines separately.
Frequently Asked Questions
Can craniosynostosis be treated without surgery?
There is no medicine or helmet that opens a fused seam, and once craniosynostosis needs treating that treatment is an operation, though the mildest end of the range is watched rather than operated, as above. Cranial sutures are what allow the skull to grow through the first two years of life, premature fusion of one prevents that normal growth, and the risk of raised pressure inside the head keeps increasing for as long as there is no operation, which is why surgical treatment is usually undertaken soon after diagnosis. Helmets belong to a different problem: they are used for flattening caused by lying position, where a randomised trial in infants with moderate to severe positional deformation found six months of helmet therapy no better than letting the deformation follow its natural course, and they are used again as part of the plan after some endoscopic operations.
Will my baby’s head look normal afterwards?
The shape usually improves substantially, and the two operative routes achieve comparable measured results. No honest answer promises a particular outcome for one child, which is one of the things follow-up visits exist to track.
Is one operation usually enough?
Usually yes. Reoperation is recorded in about 2.4 percent of babies in the 30 days after surgery in large national datasets, and in about 6.5 percent of one British unit’s patients followed for an average of six years. It is lower after endoscopic than after open repair.
Will the anaesthesia harm my baby’s brain?
The best evidence available is reassuring but does not cover this operation exactly. In a randomised trial of infants, just under one hour of general anaesthesia made no difference to intelligence at five years compared with awake regional anaesthesia, but craniosynostosis surgery is longer than that, so ask your anaesthetist directly about your baby.
Is craniosynostosis surgery done in the Philippines?
Yes. Both open cranial vault reconstruction for a fused midline seam and fronto-orbital advancement in an infant with a craniofacial syndrome have been performed and published from the Philippine General Hospital in Manila. There is no Philippine figure for how many are done each year, or for what they cost, and this page will not invent one.
What to do now
What to Do Now
If any of the same-day signs above are present, go now and do not wait for an appointment.
Otherwise the next step is a consultation with a team that operates on infant skulls regularly. Ask your paediatrician for a paediatric neurosurgery or craniofacial referral, bring the baby book and the photographs, and ask whether your baby is still inside the endoscopic window, because that is the part of this decision with a clock on it.
Huwag po kayong mahiyang magtanong ulit kung may hindi malinaw. Karapatan po ninyong maintindihan ang bawat hakbang bago kayo pumirma ng kahit ano.
See sources
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